Annual effective dose from environmental gamma radiation in Bushehr city
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- 作者：Ali Mahmoud Pashazadeh (3)
Mahdi Aghajani (3)
Iraj Nabipour (4)
Majid Assadi (3) - 关键词：Effective dose ; Outdoor ; Indoor ; Background gamma radiation
- 刊名：Journal of Environmental Health Science and Engineering
- 出版年：2014
- 出版时间：December 2014
- 年：2014
- 卷：12
- 期：1
- 全文大小：323 KB
- 作者单位：Ali Mahmoud Pashazadeh (3)
Mahdi Aghajani (3)
Iraj Nabipour (4)
Majid Assadi (3)
3. The Persian Gulf Nuclear Medicine Research Centre, Bushehr University of Medical Sciences, Bushehr, Iran
4. The Persian Gulf Tropical Medicine Research Centre, The Persian Gulf Biomedical Research Centre, Bushehr University of Medical Sciences, Bushehr, Iran - ISSN：2052-336X
文摘
Background Present study was an attempt to measure outdoor and indoor gamma dose rates in Bushehr city to determine corresponding annual effective dose and, to assess effect of active nuclear power plant located in Bushehr city on background radiation level of this city. Methods All measurements were performed by G.M (Geiger Muller) detector (X5C plus) calibrated in Iran Atomic Energy Agency. In order to avoid effects of ground on outdoor and indoor measurements, G.M detector was placed one meter higher than ground level. Also, during the outdoor measurements, G.M detector was used at least six meters away from the walls of any building nearby to avoid unwanted effects of the materials used in the buildings on measurements. Results Average gamma dose rates of outdoor and indoor measurements were determined as 51.8?±-.8?nSv/h and 60.2?±-.2?nSv/h, respectively. Annual effective dose due to background gamma radiation was calculated as 0.36?mSv which was lower than average global level. Conclusions The average annual effective dose from background gamma radiation in Bushehr city was less than global level. Comparison of the results of present study, as follow up, with previous attempt performed in 2004 to determine effective dose of environmental gamma radiation in Bushehr province revealed that, during eight years, nuclear power plant located in this city has not significantly increased level of annual effective dose of Bushehr city.